Mining-machine.



II. A. KUHN .I w. w. NIACFARIIEN. y

MINING MACHINE.

APPLICATION FILED mm2?. 1909.

Patented May 23, 1916.

5 SHEETS-SHEET I.

mumwuZP@ H. A. vKUHN 6L W. W. MACFARHEN. MINING MACHINE. APPucATIN msn MAR.27.1909. 1,184,358.

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5 SHEETSfSHEET 2.

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Patented May 23, 1916.

WITNESSES /ly/ @i H, A. KUHN L w. w. MACFARREN.

MINING MACHINE.

APPLlcATmN HLEL MAR. 27. 190s.

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5 sHEETs-sHEET s.

INVENTO Patented May 23, 1916.

N www H. A. KUHN & W. W. MACFARREN.

MININ@ MACHINE. APPLICATION man MAR. 27, 1909.

Patented May 23, 9l6.

5 SHEETS-SHEET 4.

H. A. KUHN L W. W. MACFARREN.

MINING MACHINE. APPLICATION FILED MA.27, 1909.

PaIeiIIed May 23,1916.

5 SHEETLSHEET 5.'

FIG. I5.

WITNESS!! INVENTOR PATENT onnrgfm 1, rialzata. kunNnNn .WALTER W. MAGFARREN, or PITTSBURGII, rn,unsrinviata*In;pA

sain MACFARREN AssIeNoR To. SAID KUHN.

\ To all whom t may concern: i

l i vertical height of a coal seam; tomine the coal `Without the `use of explosives; to mine the major portion of the coal in very large Beit knovvn that We, HARRY A. KUHN and WALTER W. MACFARREN, l citizens of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylq. vania,fhave inventedcertain fnew and useful Improvementsfin Mining-Machines, of which `the o1lo`vvingis Va specification.-

i The objects of our invention are `to pro-` videamachine adapted to mine the full lumps `to provide a machine adapted to cut narrovi entriesor rooms, and to lprovide `a strong serviceable and fast machine for the i above purposes, together withsuch minor improvements ,and` devices as will be hereina'ter set forth; y l .l

i Our` inventioncomprises, generally stated,

a `substantial frame Work vmounted upon four Wheels, which` are adapted to run on the floor of -a mine. At the front .endof the frame,` there `are `mounted three cutting chains, operating in horizontal planes; and two. cutting", chains operating` in vertical planes. At the center of the machine, there is provided af inotor` for operatingthe vari- 'so erated traction Wheels and a-,iiuidfpressure `j ack, Whichis used as afulcrum to force thel ousfmechanisnis, and lthe rear of the machinelisprovided with la `pair of power op` cuttingchains into the coal.

l `Referring tothe drawings, Figure 1 is a plan view of` our' improved machine, showing `thesamein Working position in an en- `try in a mine.y Fig. 2 is aside elevation of the same, showing the machine in operation j ina coal seam@ Fig. y3 is a. sectional elevation on the line 1-1 of Fig. 2.` Fig. `el: is-'a sectional elevation on the line '2-2 of Fig.

2.` Fig. 5 is a sectional ,elevation on the fline 3-8 of Fig. 2. Fig. 6 .is a plan view through the end of an entry, showing the cuts made therein by the machine. Fig. 7

",is a sectional `elevation ofv the'same on a u `larger scale. Fig. 8 is a `rear elevation of the machine. .'Fig. 9 is an cross section through the `bevel gear 47 andthe difieren# tial 49. Fig. 10 is a sectionai `elevation showing the attachment of thesupplementary frame 2 and the plunger 64 to the rear :i `jack `cylinder 61. Fig. 11 is a diagram 9 `showing the various pressure operated mech- MININe-MAQHINE Specification of Letters Patent.

ranged to be adjusted vertically, although in practice it will be sufiicient to have the upper and` lower ones adjustable. Each pair ouf Vplates is provided with pair of sta tionary pivot pins L1, uponeach of which l Patented Mayas, 191e.; `.Appiia'cidn med March 27,1909. serial No. 4stats. v

there is` mounted` an idler sprocket 5. i'

Mounted in suitable bearings on the frame 1 is thewvertical shaft 6. This shaft has se cured thereto three sprockets 7, yeach horizontally in line with one of the sprockets 5. Between the sprockets 5 and the sprockets 7 are the sprockets 8 and 9. The sprocket is loosely mounted on a pin 10, the same `heing secured to the swinging links 11 and 12. The opposite ends of `the links 11 and 12 are pivote to the frame 1 by the pins 13 and 14. The link 12 comprises two partei con nected by the sleeve nut 15, by which the length of the link may be changed. A simi lar construction is used on the opposite side undercutting machines. Chains 17 are pro vided. at intervals with cutting teeth 18, which are adaptedv to-cut grooves or slots in the coal. In the rear of the shaft 6 there is mounted on the frame 1, af motor or `en gine 19.r In the drawings, We have illustrated this as a four-cylinder gasol'ene engine, although for the desired purposes there might be substituted an' electric motor or a compressed air engine.

The shaft 20 of the engine 19 is connected by means of the friction clutch coupling 21 to ya short shaft 22 mounted in thejbearing of the machine., except that the sleeve nut 23 secured to the frame 1. The shaft 22 carries a bevel pinion 24, which meshes with` four rollers 27. The rollers 27 engage the top and bottom members of the frame 1 in such a manner that the supplementary frames 26 may be extended several feet beyond the forward end of the frame 1 or retracted to a position flush therewith. Each frame 26 carries a air of idler sprockets 28, at the front end t ereof, an idler sprocket I 29 at the rear end thereof, and a. driving sprocket `30 also at the rear end thereof. The driving sprockets 30 are mounted on shafts 31 supported in the bearings 32. Upon the shafts 31 are mounted the bevel gears 33, meshing with and being driven by bevel pinions 34 upon the shafts 35. Upon eachof the shafts 35 there is loosely mounted a spur gear 36, so arranged that the .shaft 35 may slide through the gear 36 and at the' same Vtime be always in driving engagement therewith. The gears 36 both mesh with and are driven by the idler gear 37 supported on the pin 38 secured to the frame 1.

Upon the engine shaft 20 there is fixed a spur` inion 39 meshing with the spur gear 37, an driving, by means of the above described connections, the side chains 40. 4Side chains 40 are passed around the sprockets 28, 29, and l30, and are' provided with the cutting teeth 41. These' chains may be duplicates of the horizontal chains 17, or of any desired construction.

ln order to feed the chains 40 into the coal, we have provided the double acting fluid pressure cylinders 42 secured`\to the frame 1. The piston rods 43 of these cylinders are connected by the pin 44A with the supplementary frames 26, each frame 26 having an independent cylinder.

In order to drive the machine as a whole, the following mechanism is employed z--A bevel pinion 45 is loosely mounted upon the ends of the shaft 20 and connected thereto at will by the friction clutch 46, which may be of any desired construction. pinion 45 meshes with and drives the bevel gear 47 upon a divided shaft 48. Power is differentially applied to the two ends of the shaft 48 through the differential 49. Each end of the shaft 48 carries a sprocket 50', which drives a chain 51. The chain 51 is led around the driving sprocket 50, and also around the idler sprockets 52 and 53. The idler sprocket 52 is mounted on 'a pin 54 secured to the frame l. The idler sprocket 53 is mounted on it pin 55 mounted on the supplementary frame 2. Additional idler sprockets 56 and 57 are mounted upon' The bevell pins secured to the supplementary frame 2.

r1`he rear truck wheels 58 are loosely mounted on the'axle 59 and secured to :each truck wheel-58 there is a sprocket 60. The chain 51 engages the sprockets 50, 52, 53, 56, 57,y

and 60; Power bein appliedl to the sprockets 50, the same w11l be'transmitted to the truck wheels 58 by means of the sprocket 60. The peculiar arrangement of 'i sprockets and chains shown allows of the telescoping of the supplementary frame 24 Within the main frame 1, at the same time providing a-I constant drive to the truck wheels 58. The-friction rollers 2* 'provide for the easy movement of the telescoping members.

.The fluid pressure jack 61 is secured to the supplementary frame 2, and is supplied with upper and lower pointed plungers 62 adapted to grip the roof and Hoor of the mine. The lower plunger 62 extends through the axle 59 as shown in Figs. 8 and small air pump4 having a pulley or sprocket' `10. If now fluid pressure be applied to the 66, which may be driven'by a chain or belt 67; also, la pulle or sprocket 6 8 upon the shaft 48. The

uid pressure generated by the pumpA 65 is passed to a. reservoir 69, from whenceit may be piped to the various fluid pressure cylinders as needed.

At the front end of the machine We have provided a pair of ground bearing wheels 70, mounted upon swmging axle 71 supported in th'e axle housing 72. v The axle 71 carries the bevel` gear 73, the same meshing with and being driven b y a bevel pinion 74 upon the vertical shaft 75. This shaft. 75

extends up through a bracket 76 in whichv n are formed the bearings 77. Upon'the upper end Aof the shaft 75 is mounted the sprocket 78. The 'sprocket 78"may be driven by the chain 79, which is in turn driven by asprocket upon the shaft 6. The axle housing 72 may be rotated about the center of the shaft 75', by means of the teeth 80, to which power can be applied in any convenient manner, as by a spur pinion on a shaft 81 actuated by the rack 82, which in turn is actuated by fluid pressure cylinders 83.

In Figs. 6 and 7, we have illustrated the cuts made in the coal by the various mechanisms above described. The cuts 84, 85, 86, and 87 are made by the side chains 40, and the cuts 88, 89, and 90 are mande by the hori- Zontal chains 17. From Fig. 7 ,it will be jevident that@ afterthe cutting loperatioii is l 'cernpletefthe eoalfbeing cut from its native bedonall sides, fit1 may be Ieadilydslodged l byi'wedgin'g lor `,largelumps.` Theentry, of which a section y isshoiyn 1intFig.` 7, is five feet high by eleven- "-mately2 yft.`x '3i ft. x' (l fevenllarger; if desired.

ft., and:` could be s@ as lfollows: An "entry 4having ajismooth 1level,bottomfhaving been prepared" for the iieeeptioii of the machindtliemachiiie is run `,ftlfierein"with1its'front end close up tothe `face ofthe coal, and `With therear jack 61 inftheceiitei-:fline'of i e entry. i L'lhesupple- "t ry'frar'iie.`

stroke, the fronttrrclcwheels are then svvung sidewise, and the front end `of the "machine traversed ae s the face of the eni' try,clo`setotheside `wall ofthe coal, by the "rotationcf: the truck .wheels ,70.` yThis mol :tionjs tllien, stopped,andthef truck Wheels i C dthiown .into the 'position shown` in Fig.

` 2,1ready for advancing the ,machine` into the ,i coal,` The rearl jackfly is tl` cl unped by i the] application `ofluid` pressure vnd 'them f t`or-`oi1eng`ine 19 beingg' in operatioin` fluid pressure is applied to tlliecyliudeiu llfhiid `*pressiire istalso applied to thecy causing the i side Y chains:` l0 'to more forward `cutting chains i have" buried;` tl i.'-iiiselves-to their full stroke inthe coal,-after which 1ioperation"the cuts 8G,` and 87 rhave beenrcom- "99Qbavebeeni made.' 'y The side chai-ns 420 are i, thenWithdrawnto the position shown in Fig." 2hby the'` action of the fluid pressure n drawn untilV the `front end offthe chains 17 i lclcar'the coal, at which timefthe machine is zsuiungsidewise by I`mea'nsfof theitraction of jh ,front Atruck wheelsftl, intoa central po- `siti'cnfin` the entry? The 4side chains 40 are Mallo ed to remain in. thejiositit-in `shown in nFia t hori `inta] chains `17y `is `shoved `forwaid by lieafktion of the cylinder` 63, as hefore,ito -mlakeytlie middle"portions of cuts 88, S9, `andi` llitlAt `the completion of thisfiopera-L tioinr thti main` frame lis withdrawn as bewungcloar over-to theleft side` of the` entity tei?` which 4all five `of the cutting Similar means `in extremely i `Thfeoperation of rour improved machine 4 A ,K ing `telescoped `within (thefmain frame fortljie full' extent of its l I l. Ina mining machine,

inders42' inziiinison' with'. the .horizontal chainsV 117. i This action continueduntil rallfive of the i @pleted and" portions of the cuts 88, Stjandr va, vertical .ylinders 42. The main frame 1 is alsolwith'-` lchain, a sli and the main frame 1, carrying the l tore, and the'front endV ofthe` machine' cars may be brought to the face ofv the coal and the same 'loaded thereon'for transportation out of the mine.'

From the foregoing, `we `have provided a machine adapted -to it will be evidentthaty minetlie entire thickness of thecoal seam.

fora convenient Width, and that the majori ity of the coal will be in verylarge lumps:

we have used mechanisms binedas to achieve the above results.l

Many changes andA variations in.`v the design, construction, and operation of oui" inveiition `may be made by those skilled Yin these several arts, without departing;- from of usual and ordinary construction, so comdesire` to` claim and i hold entable subject matteilowingclaims:

as ours all the `patcoveredby the fola frame,^a plurality of cutting chains mounted interthe machine therefrom,a pivot at the rear about said pivot to position it for a second cut adjacent to the first, whereby anentry or tunnelmay be out out wider thanthe machinel.`y f l. i i A Ina-mining machine, a cutting chain operating in` one plane, a second cutting chain operating` in a plane at an angle to the first, and means for 'separately advancing* one of said chains to make a cut While the y other is out of action.

3; In a mining` machine, a plurality of cutting chains operating in horizontal planes, another cuttingr chain operating in plane, and means for feeding the first mentionedvchains into the coal Without the last mentioned chain or for feeding all of said chains in together.

4. In a mining machine, an under-cutting ai-ing,r chain, means for feeding in lioth togetl'ier, and means for Withdrawing the shearing chain independentlyof the undercutting chain.

5L In a mining machine,a frame, a 4shear- .ing chain* at one Side thereof, a second shearing chain at theother side thereof, and independent means for feeding.;` each of said chains to make its cut.

6. Ina mining` machine, a frame, a shearingf chaiinmounted at each side thereof, and means independent of the movement 'of said 'frame `and of'each other for feeding* each 'of said chains `to makeits cunt.

'the spirit of our invention, and we therefore ses` .end of said frame, and means for swinging the machine 8. In a mining machine, a main fra-me, a

carriage adjustably mounted on each side of --independently adjustable shearing chain mounted` at each side thereof, a series of horizontal cutting chains located one above the other and between said shearing chains, means `for driving all of said chains, and means for feeding the machine forward to cause all of said chains to cut simultane` ously.

10. In a mining machine, a frame, three horizontal cutting chains mounted thereon. a Vertical shaft, three sl'irocketssecured thereto, adapted to-drive said horizontal chains, a motor, bevel gears connecting said v motor shaft and saidvvertical shaft, a shearingy chain.I mounted at each side of said frame, afvlvo'ngitudinal drive shaft therefor,

and spur gearing connecting said lmotor shaftand each of said longitudinal shafts.

11. In` a mining machine, a frame, three horizontal cutting chains mounted thereon,

al motor, connections from said motorA to 30' drive said chains, a longitudinally movable carriage at each side of said frame, a shearmg chain on each of said carriages, a shatt mounted on each side of sai-d frame, a gear `mounted on each of said carriages, and slidably engaging said shaft, power connections between each of saidl gears and a shearing chain, and power connections between each of said shafts and said motor.

12. In ay mining machine, a frame, a plurality of horizontal cutting chains mounted one above the lothei aty the front' end thereof, a vertical driving shaft, a sprocket on said sha-ft for each of said chains and a` pair of guide wheels for each of said chains ad- A /f'iieously advancing the chains to make inter- 110 jacent to the coal being cut, said guide wheels being located in advance of any other part of the machine.

13. 'In a` mining machine, a frame, an ad- Justable carriage at one side thereof in. a

vertical plane, a shearing chain on said carriage,'means. for drivin said chain, and a iiuid pressure cylinder for moving said carriage toifeed said chain to its work.

14. In a mining machine., a frame, horizontally operating cutting devices mountedl j l. i)

1,184,353 v i v i the coal, whereby at each forward motion of the machine the coal in front thereof is sub-divided into two blocks hanging by one end only.

16.'In a mining machine, a frame, three vhorizontally operating and tw`o vertically operatingcutting chains thereon, and means for driving and feeding said chains to cause them to'niake intersecting cuts, thereby substantially separating a portion of standing coal into two blocks hanging by one end only.

17. In av mining machine, a main frame, a. second frame adjustably' mounted on the main frame, the second frame holding a plurality of chain cutters at'the forward end thereof arranged to operate in different planes, power operated means to advance the 'secondI frame forward into the` coal, power -operated means to withdraw the second frame after the cut has been made, and

means to swing the main frame sidewise to position the machine for a new cut.

1S. In a mining machine, fa suitable frame and a power ope 'ated horizontal cutting chain adapted to make a horizontal nnde'r -cut in a coal seam, two power operated vei'- tical cutting chains arranged to make two .shearing cuts in the coal ,above and at each sidel of the cut made by the horizontal' underciitting chain, thereby severing the coal at the bottom and at the two sides, power operated cutting tools of such width t0 extend the entire space between thetwo vertical cutters arranged to operate above the undercutter and to make cuts extending the same distance asv the iindercnt across the coal 4as it feeds forward between the two. I

vertical' chain shearing cutters, and power operated means to advance all of said cutters simultaneously into the coal. y

19. In a` mining machine, a f ranie, a plui'ality of cutting chains mounted in intersecting planes thereon, means for lsimulta- Asecting cuts in the coal, means for withdrawing the chains therefrom, and meaiis/ for moving the front end of the machine sidewi'se to position it for a second cnt adjacent to the first, whereby an entry 'or tunnel may be cut wider than the machine.

20. In a mining machine, a suitable frame, a plurality of p'oweiioperated chain cutters, two of -which are substantially parallel, mounted in intersecting planes with a chain undercutter at the forward end of the frame, power-operated means adapted to make a plurality of cuts in the coal between the parallel chain cutters and above the undercilitter, and"*power-operated means to yadvance all the cutting elements forward into the coal,

means to'inove the machine forward, backward or sidewise.

21. In a mining machine, a suitable frame, a. plurality of power-operated chain cutters,

one, an undercutter andvtwo others being parallel chain cutters, mounted in intersectingplanes with the undercutter at the for- :"ters and 4above "undercutter, and power-0p- 'erated means to advance all of the cutting elements forward into `the coal simultaneously, power-operated means to withdraw some of the'chain cutters after the coal has been cut into, and meansto move the frame sidewise to position some of the cutters for a new forward' cut.

and a power-operated cutting chain adapted to make an undercut in the bottom. of the f withdraw some of said cutters independcoal seam, a power-operated chainv shearing cutter adaptedto make a shearing cut above the horizontal cut made by the chain undercutter, a plurality of power-operated cutting members arranged to cut into the coal above the bottom cutter and to one side of the; shearing cutter, `means to advance all the cutting elements to their work, means to entlv, and means to move all of the cutters sidewise.

23. In a mining machine, a suitable frame and a power-operated undercutting device, a plurality of power-operated shearing .devices, a cutting device operating between theshearing devices and above the undercutting-device, means to operate all theeutting devices together and means to advance them into `the coal forwardly at substantially right angles to theface ofthe coal, means to withdraw or advance the cutters operating in one` plane independently of those operatmg e in another plane. ,t

` 24. In a mining machine, a frame, a hori- I zontal cuttingdevlce, means to operate the horizontal cutting device, a cutting device working at an angle to the horizontal, means to feed forward and work the vertical cut-v ting device independently of the horizontal cutting device, means to feed the machine forward,v means to move it rearwardly and means to move it sidewise.

25. In a `mmmg machine, a frame4 a plu` i ralityof cutting elements mounted thereon and arranged -to cut a plurality `of slots in the coal whereby a plurality of blocks of coal are left hanging by one end only, poweractuated means to feedthe machine forward to its fwork, power actuated means-to move d it rearwardly, and power-actuated'means to move it sidewise to operation. l l i 26. In a mining machine, a main frame, a second frame adjustably` mounted on the main frame, the second frame holding a plurality of chain cutters at the forward end thereof, power-operated means to advance the second frame'forward into the coal subposition it yfor its next 22. In a mining machine, a suitable frame stantially at right angles to the face', powerter arranged to cut into the coal below the l plane of the overcutter, means to operate the cutters, means to feed them forward, means to feed theV overcutter sidewise through the coal, means to move-the machine forward, means tol move it rearwardly, means to move it sidewise. A

29. In a mining machine, a main frame, a motor supported on said frame,l a second frame movably mounted on said main frame,

a shaft mounted on said main frame and slidably mounted in said second frame, a

4second frame movably mounted on said main frame, a cutter mounted on said second frame, power connections between said motor and said cutter, means to operate Isaid cutter, and means to move said cutter and operate it at the same time by means of said motor, means to move the machine forward, backward and sidewise.

3l. In a mining machine, two frames, one frame engaging with the other, one frame supporting cutters, power-actuated means to feed one of the frames 4forward or backward while the other is stationary, poweractuated means. to move the machine forward, backward or sidewise whereby a wall of coal wider than the machine may be attacked by the cutting elements.

32. In a mining machine, a frame, an adjustable carrier at one side thereof, a shearing chain mounted on said carrier, power-actuated means to move said carrier to feed said shearing chain to its workl independently of the movement of said frame, poweractuated means to withdraw 'saidchain, power-actuated means to move said frame sidewise, power-actuated means to move both frame and cutter forward together or means carriedthereby arranged to make a horizontal cut in the coal, a cutter arranged to make a cut forwardly at an angle to the horizontal, meansA to withdraw said lastm'entioned cutter from its cut, means to feed the horizontal cutter `forward, power-actuated means to feed it sidewise, means to move the machine forward, means to move it rearwardly, and means th move it sidewise.

chine forward, means to move it rearwardly, means to move it sidewise.

' 35. In a mining machine, an extensible frame, a motor, mechanism operated by said motor for extending said frame, and mechanism also driven by said motorzfor moving said frame sidewise whereby the machine may be positioned for another cycle of operations.

HARRY A. KUHN. WALTER W. MACFARREN.

Witnesses:

ESTELLE M. JOHNSON, CHAs. Lox'rERMAN. 

